Lube Oil and Grease II manufacturing Project Report eBook

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Lube oil is low or medium viscosity lubricating oil. It is used in machines, engines gears, bearings etc. Lube oil can be used in different viscosities depending on the nature of engine or machine.
Thin lube - oil is called low viscosity lube oil. Thick lube - oil is called high viscosity lube-oil. However when the pressure applied in the machine is very high then the thin oil will squeeze out without lubrication. Hence, thick oil must be used.
The main basic raw material comes from petroleum distillation i.e. Red Oil. Red oil has viscosity equivalent to a light SAE. It is obtained from redistillation of petroleum in the still. It is distilled into three fractions. The residue in the still refined to meet quality requirements.
Lube oil is composed of normal paraffin hydrocarbons, 150 - paraffin’s, naphthenic, aromatics & relatively small amounts of oxygen & sulphur containing compounds to be impurities.
The lube-oil is treated with additives to improve its properties so as to enhance thermal stability, resistance to oxidation, viscosity index, pour point etc.